8210125601 has 2 divisors, whose sum is σ = 8210125602. Its totient is φ = 8210125600.

The previous prime is 8210125543. The next prime is 8210125607. The reversal of 8210125601 is 1065210128.

8210125601 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5294017600 + 2916108001 = 72760^2 + 54001^2 .

It is a cyclic number.

It is not a de Polignac number, because 8210125601 - 2¹⁰ = 8210124577 is a prime.

It is a super-2 number, since 2×8210125601² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8210125607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4105062800 + 4105062801.

It is an arithmetic number, because the mean of its divisors is an integer number (4105062801).

Almost surely, 2^8210125601 is an apocalyptic number.

It is an amenable number.

8210125601 is a deficient number, since it is larger than the sum of its proper divisors (1).

8210125601 is an equidigital number, since it uses as much as digits as its factorization.

8210125601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 8210125601 is about 90609.7434109599. The cubic root of 8210125601 is about 2017.3593571763.

Adding to 8210125601 its reverse (1065210128), we get a palindrome (9275335729).

The spelling of 8210125601 in words is "eight billion, two hundred ten million, one hundred twenty-five thousand, six hundred one".